Manifolds on ebay
Swetrid, would you buy new manifolds and gaskets, also I see a seller on eBay selling manifolds for 79 bucks new. I do not know the quality of the product though, also about those bolt breaking off, aren't the bolts into the aluminum heads? You would think the aluminum would strip out first.
If I take on this project I was debating on opening the valve covers and replace the hydraulic lifters, there is a slight tick for 15 - 30 seconds in the morning on start up.